WO2009114775A1 - Système et procédé pour une charge de pression réduite - Google Patents

Système et procédé pour une charge de pression réduite Download PDF

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Publication number
WO2009114775A1
WO2009114775A1 PCT/US2009/037111 US2009037111W WO2009114775A1 WO 2009114775 A1 WO2009114775 A1 WO 2009114775A1 US 2009037111 W US2009037111 W US 2009037111W WO 2009114775 A1 WO2009114775 A1 WO 2009114775A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
compressible
reduced pressure
bladder
compressible bladder
Prior art date
Application number
PCT/US2009/037111
Other languages
English (en)
Inventor
Christopher Guy Coward
Keith Patrick Heaton
Original Assignee
Kci Licensing, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kci Licensing, Inc. filed Critical Kci Licensing, Inc.
Priority to EP09719686.9A priority Critical patent/EP2262548B1/fr
Priority to BRPI0906141A priority patent/BRPI0906141A2/pt
Priority to CA2716486A priority patent/CA2716486C/fr
Priority to AU2009223234A priority patent/AU2009223234B2/en
Priority to CN2009801074207A priority patent/CN101959545B/zh
Priority to JP2010550891A priority patent/JP5122658B2/ja
Publication of WO2009114775A1 publication Critical patent/WO2009114775A1/fr
Priority to IL207780A priority patent/IL207780A0/en
Priority to ZA2010/07284A priority patent/ZA201007284B/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A61M1/82—Membrane pumps, e.g. bulbs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/742—Suction control by changing the size of a vent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A61M1/81—Piston pumps, e.g. syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/96—Suction control thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H7/00—Devices for suction-kneading massage; Devices for massaging the skin by rubbing or brushing not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/92—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing with liquid supply means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/07—General characteristics of the apparatus having air pumping means
    • A61M2205/078—General characteristics of the apparatus having air pumping means foot operated

Definitions

  • the present application relates generally to tissue treatment systems and in particular to a system and method for reduced pressure charging.
  • reduced pressure is applied to tissue through a porous pad or other manifold device.
  • the porous pad contains cells or pores that are capable of distributing reduced pressure to the tissue and channeling fluids that are drawn from the tissue.
  • the porous pad often is incorporated into a dressing having other components that facilitate treatment.
  • Reduced pressure treatment systems may include reduced pressure sources such as a powered pump that generates the reduced pressure that is delivered to a tissue site.
  • reduced pressure sources are often bulky or obtrusive to a user and are not readily adapted to be used in conjunction with foot treatment systems.
  • a reduced pressure treatment system includes a compressible bladder positioned beneath a foot of a user.
  • the compressible bladder includes a chamber substantially enclosed by a chamber wall, and the compressible bladder is movable between an expanded position and a compressed position to generate a reduced pressure.
  • a resilient member is operatively associated with the chamber wall to bias the compressible bladder toward the expanded position.
  • a manifold is positioned at a tissue site of the user and in fluid communication with the chamber of the compressible bladder.
  • a reduced pressure treatment system in another illustrative embodiment, includes a compressible chamber positionable beneath a foot of a user and being movable between an expanded position and a compressed position.
  • the compressible chamber includes an inlet and an outlet.
  • An inlet valve is in fluid communication with the inlet to prevent fluid within the compressible chamber from exiting the inlet, and an outlet valve is in fluid communication with the outlet to prevent fluid from entering the compressible chamber through the outlet.
  • a biasing member is disposed within the compressible chamber to bias the compressible chamber toward the expanded position, and a manifold is positionable at a tissue site and in fluid communication with the inlet of the compressible chamber.
  • a reduced pressure treatment system in still another illustrative embodiment, includes a compressible bladder positionable beneath a foot of a user.
  • the compressible bladder includes a chamber and is movable between an expanded position and a compressed position.
  • the system further includes a biasing member disposed within the chamber to bias the compressible bladder toward the expanded position.
  • a pressure regulator having a first variable-volume cavity and a second variable-volume cavity is provided.
  • the first variable-volume cavity is fluidly connected to the chamber of the compressible bladder, and a manifold is positionable at a tissue site and in fluid communication with the second variable-volume cavity of the pressure regulator.
  • a method for providing a reduced pressure to a reduced pressure tissue treatment system used by a user is provided.
  • the method includes compressing a compressible bladder with a foot of the user and generating the reduced pressure within a chamber of the compressible bladder as the compressible bladder expands.
  • FIG. 1 illustrates a schematic of a reduced pressure treatment system having a compressible bladder system according to an illustrative embodiment
  • FIG. 2 depicts a perspective view of the compressible bladder system of FIG. 1;
  • FIG. 3 A illustrates a cross-sectional side view of the compressible bladder system of
  • FIG. 2 taken at 3-3, the bladder system being shown in an expanded position
  • FIG. 3B depicts a cross-sectional side view of the compressible bladder system of FIG. 2 taken at 3-3, the bladder system being shown in a compressed position;
  • FIG. 4 illustrates a schematic of a compressible bladder system and pressure regulator according to an illustrative embodiment
  • FIG. 5 depicts an article of orthotic footwear having a compressible bladder system according to an illustrative embodiment.
  • reduced pressure generally refers to a pressure less than the ambient pressure at a tissue site that is being subjected to treatment. In most cases, this reduced pressure will be less than the atmospheric pressure at which the patient is located. Alternatively, the reduced pressure may be less than a hydrostatic pressure associated with tissue at the tissue site. Although the terms “vacuum” and “negative pressure” may be used to describe the pressure applied to the tissue site, the actual pressure reduction applied to the tissue site may be significantly less than the pressure reduction normally associated with a complete vacuum. Reduced pressure may initially generate fluid flow in the area of the tissue site. As the hydrostatic pressure around the tissue site approaches the desired reduced pressure, the flow may subside, and the reduced pressure is then maintained. Unless otherwise indicated, values of pressure stated herein are gauge pressures. Similarly, references to increases in reduced pressure typically refer to a decrease in absolute pressure, while decreases in reduced pressure typically refer to an increase in absolute pressure.
  • tissue site refers to a wound or defect located on or within any tissue, including but not limited to, bone tissue, adipose tissue, muscle tissue, neural tissue, dermal tissue, vascular tissue, connective tissue, cartilage, tendons, or ligaments.
  • tissue site may further refer to areas of any tissue that are not necessarily wounded or defective, but are instead areas in which it is desired to add or promote the growth of additional tissue. For example, reduced pressure tissue treatment may be used in certain tissue areas to grow additional tissue that may be harvested and transplanted to another tissue location.
  • a reduced pressure treatment system 100 includes a reduced pressure dressing 104 positioned at a tissue site 108 of a patient.
  • the reduced pressure dressing 104 may include a distribution manifold 122 that is positioned adjacent to or in contact with the tissue site 108 to distribute a reduced pressure supplied by a reduced pressure source 134.
  • the distribution manifold 122 may be any material, either bioabsorbable or non-bioabsorbable, that is capable of manifolding a reduced pressure to the tissue site 108.
  • the distribution manifold 122 is a porous foam and includes a plurality of interconnected cells or pores that act as flow channels.
  • the porous foam may be a polyurethane, open-cell, reticulated foam such as GranuFoam® dressing manufactured by Kinetic Concepts, Inc. of San Antonio, Texas. If an open-cell foam is used, the porosity and pore size may vary, but in one embodiment, the pore size associated with the open-cell foam is about 400 to 600 microns.
  • the flow channels allow fluid communication throughout the portion of the distribution manifold 122 having open cells.
  • the cells and flow channels may be uniform in shape and size, or may include patterned or random variations in shape and size. Variations in shape and size of the cells of manifold result in variations in the flow channels, and such characteristics may be used to alter the flow characteristics of fluid through distribution manifold 122.
  • Distribution manifold 122 may also be constructed from bioresorbable materials that do not need to be removed from a patient's body following use of reduced pressure treatment system 100. Suitable bioresorbable materials may include, without limitation, a polymeric blend of polylactic acid (PLA) and polyglycolic acid (PGA). The polymeric blend may also include without limitation polycarbonates, polyfumarates, polyhydroxybutarates, polyhydroxyvalerates, polysaccharides, polyaminoacids, and capralactones. Distribution manifold 122 may further serve as a scaffold for new cell-growth, or a scaffold material may be used in conjunction with distribution manifold 122 to promote cell-growth.
  • PLA polylactic acid
  • PGA polyglycolic acid
  • the polymeric blend may also include without limitation polycarbonates, polyfumarates, polyhydroxybutarates, polyhydroxyvalerates, polysaccharides, polyaminoacids, and capralactones.
  • Distribution manifold 122 may further
  • a scaffold is a substance or structure used to enhance or promote the growth of cells or formation of tissue, such as a three-dimensional porous structure that provides a template for cell growth.
  • Illustrative examples of scaffold materials include calcium phosphate, collagen, PL A/PGA, coral hydroxy apatites, carbonates, or processed allograft materials.
  • the scaffold material has a high void-fraction (i.e., a high content of air).
  • the distribution manifold 122 is fluidly connected to the reduced pressure source 134 by a conduit 112.
  • the conduit 112 may fluidly communicate with the distribution manifold 122 through a tubing adapter 118 positioned adjacent to the distribution manifold 122.
  • a drape 128 may be placed over the distribution manifold 122 and sealed around a perimeter of the tissue site 108 to maintain reduced pressure at the tissue site 108.
  • the reduced pressure source 134 is a compressible bladder system 138 that is manually-actuated by a user to provide the reduced pressure to the tissue site.
  • the compressible bladder system 138 is described in more detail below with reference to FIGS. 2 and 3. Delivery of reduced pressure to the reduced pressure dressing 104 and tissue site 108 encourages new tissue growth by maintaining drainage of exudate from the tissue site 108, increasing blood flow to tissues surrounding the tissue site 108, and creating microstrain at the tissue site 108.
  • a canister 142 may be fluidly connected between the reduced pressure source 134 and the tissue site 108 to collect exudate and other fluids drawn from the tissue site 108.
  • the canister 142 includes an inlet that is fluidly connected to the conduit 112 and an outlet that is fluidly connected to the reduced pressure source 134.
  • a liquid-air separator (not shown), such as for example a hydrophobic filter, may be operatively associated with the outlet of the canister 142 to prevent liquid from exiting the canister 142 through the outlet. The liquid-air separator prevents the reduced pressure source 134 from becoming contaminated by exudate and other biologically contaminative materials.
  • the reduced pressure treatment system 100 may include additional dressing components at the tissue site 108 that are capable of storing exudate and other liquids at or near the tissue site.
  • the reduced pressure dressing 104 positioned at the tissue site 108 may include, in addition to the distribution manifold 122, one or more absorbent layers that permit storage of liquid within the reduced pressure dressing 104.
  • the liquid storage capabilities of such a dressing may be used in lieu of or in addition to the canister 142.
  • a pressure regulator 148 may be fluidly connected between the compressible bladder system 138 and the canister 142 to regulate and control the amount of pressure delivered to the canister 142 and the tissue site 108.
  • the pressure regulator may be any device that is capable of regulating or controlling a reduced pressure or a positive pressure.
  • the pressure regulator 148 is provided to ensure that the reduced pressure delivered to the tissue site 108 does not exceed a threshold amount. In other words, the pressure regulator ensures that the absolute pressure supplied to the tissue site 108 is not too low.
  • a vent (not shown) may be associated with the pressure regulator 148 to raise the absolute pressure within the pressure regulator if more reduced pressure than is needed is provided by the compressible bladder system 138. The vent may operate by allowing ambient air into the pressure regulator when the absolute pressure within the pressure regulator 148 drops below a predetermined value.
  • the reduced pressure treatment system 100 may also include sensors, processing units, alarm indicators, memory, databases, software, display units, and user interfaces that further facilitate the application of reduced pressure treatment to the tissue site 108.
  • a sensor (not shown) may be disposed at or near the reduced pressure source 134 to determine a source pressure generated by the reduced pressure source 134. The sensor may communicate with a processing unit that monitors and controls the reduced pressure that is delivered by the reduced pressure source 134.
  • the compressible bladder system 138 includes a pair of compressible bladders 210.
  • Each compressible bladder 210 includes a chamber wall 214 that substantially encloses a chamber 218.
  • the compressible bladder 210 is movable between an expanded position (see FIG. 3A) and a compressed position (see FIG. 3B).
  • a biasing member 224 or resilient member, is disposed within the chamber 218 to bias the compressible bladder 210 toward the expanded position.
  • the biasing member 224 is an open-cell foam such as, for example, a reticulated polyurethane foam similar to that used with the distribution manifold 122.
  • the biasing member may be a spring, sponge, or any other type of resilient material or structure that is capable of returning the compressible bladder 210 to the expanded position following compression of the compressible bladder 210.
  • the biasing member 224 may be positioned external of the chamber 218 and still have a biasing effect that urges the compressible bladder 210 toward the expanded position.
  • the biasing member 224 may include a resilient material that is bonded, welded, or other attached to or integrated into the chamber wall 214 that causes the chamber wall 214 to resiliently return to the expanded position.
  • the biasing member 224 may include the chamber wall 214 without additional structures, components, or materials. More specifically, if the chamber wall 214 is made from a sufficiently resilient material, the chamber wall 214 may attempt to return the compressible bladder 210 to the expanded position after the compressive force has been removed.
  • each compressible bladder 210 includes an inlet 230 and an outlet 234.
  • An inlet valve 240 is in fluid communication with the inlet 230 to prevent fluid exiting the chamber 218 from passing through the inlet 230.
  • An outlet valve 244 is in fluid communication with the outlet 234 to prevent fluid from entering the chamber 218 through the outlet 234.
  • the inlet valve 240 and outlet valve 244 may be positioned in conduits fluidly connected to the inlet 230 and outlet 234, respectively, as shown in FIG. 2. Alternatively, the inlet valve 240 and outlet valve 244 may be more directly associated with or positioned within inlet and outlet ports on the compressible bladder 210.
  • the inlet valve 240 and outlet valve 244 may be any particular type of valve for selectively inhibiting or preventing fluid flow, but in one embodiment, the valves 240, 244 are one-way valves such as check valves to allow fluid flow in one direction and prevent fluid flow in another direction.
  • a check valve that may be used with the compressible bladders 210 is a flapper-type valve that includes a flapper positioned over an aperture in the chamber wall 214. As fluid pressure on one side of the aperture builds, the flapper moves to an open position to allow fluid communication through the aperture. As fluid pressure on the other side of the aperture increases, the flapper is moved against the aperture to block fluid communication.
  • the compressible bladders 210 are positioned beneath a foot 310 of a user.
  • One of the compressible bladders 210 is preferably positioned under a heel region 314 of the foot 310, and another of the compressible bladders 210 is preferably positioned under a forefoot region 318 of the foot 310.
  • gas e.g. air
  • the gas that is ejected from the chamber 218 is prevented from exiting the inlet 230 due to the presence of the inlet valve 240.
  • the compressible bladder 210 begins to move toward the expanded position. The movement of the compressible bladder 210 toward the expanded position is aided by the biasing member 224.
  • a volume of the chamber 218 increases, which creates a reduced pressure within the chamber 218 relative to ambient pressure surrounding the compressible bladder 210.
  • This reduced pressure within the chamber 218 pulls fluid into the chamber 218 through the inlet valve 240 and the inlet 230. Fluid is prevented from entering the chamber 218 through the outlet 234 due to the presence of the outlet valve 244.
  • the reduced pressure generated by the compressible bladder 210 during expansion may be transmitted to the distribution manifold 122 by fluidly connecting the manifold 122 to the inlet 230 of the compressible bladder 210.
  • the positioning of the compressible bladders 210 under the heel region 314 and forefoot region 318 of the foot 310 allows a more consistent application of reduced pressure as the user cyclically applies weight to the heel region 314 and then to the forefoot region 318.
  • Such a regimen of weight distribution is consistent with normal walking or running activities, and the compressible bladder system 138 is particularly suited for generating reduced pressure while a user is walking or running.
  • the compressible bladder 210 under the heel region 314 compresses to the compressed position.
  • the compressible bladder 210 under the forefoot region 318 compresses to the compressed position.
  • the shifting of weight to the forefoot region 318 relieves the compressive force on the compressible bladder 210 near the heel region 314, thereby allowing the compressible bladder 210 under the heel region to expand and generate reduced pressure.
  • the compressible bladder 210 under the forefoot region 318 expands, thereby generating reduced pressure. This cycle continues as the user continues walking, which permits a generation of reduced pressure.
  • a compressible bladder system 408 similar to compressible bladder system 138 is illustrated.
  • the compressible bladder system 138 includes a pair of compressible bladders 410.
  • Each compressible bladder 410 includes a chamber wall 414 that substantially encloses a chamber 418.
  • the compressible bladder 410 is movable between an expanded position and a compressed position similar to those previously described with reference to FIGS. 3 A and 3B.
  • a biasing member, or resilient member, (not shown) is disposed within the chamber 418 to bias the compressible bladder 410 toward the expanded position.
  • the biasing member is similar in structure and function to the biasing member 224 previously described.
  • the chamber 418 of each compressible bladder 410 includes an inlet 430 and an outlet
  • An inlet valve 440 is in fluid communication with the inlet 430 to prevent fluid exiting the chamber 418 from passing through the inlet 430.
  • An outlet valve 444 is in fluid communication with the outlet 434 to prevent fluid from entering the chamber 418 through the outlet 434.
  • the inlet valve 440 and outlet valve 444 may be positioned in conduits fluidly connected to the inlet 430 and outlet 434, respectively, as shown in FIG. 4. Alternatively, the inlet valve 440 and outlet valve 444 may be more directly associated with or positioned within inlet and outlet ports on the compressible bladder 410.
  • the inlet valve 440 and outlet valve 444 are similar in structure and function to the valves previously described herein.
  • the compressible bladder system 408 includes a pressure regulator 460 having a first variable-volume cavity 464 and a second variable- volume cavity 468.
  • the cavities 460, 468 share a common piston wall 472 that is movable between a retracted position (not shown) and an extended position (see FIG. 4) to vary the volume associated with the cavities 460, 468.
  • the cavities 460, 468 are fluidly separated from each other by a divider 476.
  • the divider 476 may be a bellows that is formed from a sufficiently resilient material.
  • Each of the cavities 460, 468 includes an outlet (not shown) and a one-way valve (not shown) so that air or other gases within the cavities 460, 468 may be expelled from the cavities 460, 468 when the piston wall 472 is moved to a retracted position.
  • a user may place the piston wall 472 in the retracted position by exerting a compressive force on the piston wall.
  • each compressible bladder 410 is fluidly connected to the first variable-volume cavity 468.
  • the positively pressured gas from the outlet 434 may bias the piston wall 472 toward the extended position (see FIG.4).
  • the volume of the second variable-volume cavity 468 increases, which generates a reduced pressure within the second variable-volume cavity 468.
  • the reduced pressure generated by the compressible bladders 410 and pressure regulator 460 during expansion of the second variable-volume cavity 468 may be transmitted to the distribution manifold 122 by fluidly connecting the manifold 122 to the second variable-volume cavity 468 of the pressure regulator 460.
  • a reduced pressure treatment system 500 includes an article of footwear 508 having a compressible bladder system 512 which may be similar to any of the compressible bladder systems described herein.
  • the compressible bladder system 512 is fluidly connected to a pressure regulator 516 and a canister 520.
  • the canister 520 may be fluidly connected to a reduced pressure dressing 524 positioned at a tissue site 528.
  • the reduced pressure generated by the compressible bladder system 512 and/or the pressure regulator 516 is delivered to the tissue site 528 through the reduced pressure dressing 524, which preferably includes a distribution manifold (not shown).
  • tissue site 528 has been illustrated on a side of a foot stabilized within the article of footwear 508, the tissue site 528 may instead be located in the plantar region of the foot or on any other region of the foot or lower extremities. Alternatively, the tissue site 528 may be located on other parts of the body.
  • the article of footwear 508 may be an offloading boat, cast walker, neuropathic walker, or any other type of orthotic or therapeutic footwear.
  • the article of footwear 508 is particularly well suited, when equipped with the compressible bladder system 512 to treat diabetic foot ulcers and other foot-related injuries and wounds.
  • the article of footwear 508 may be designed to relieve pressure in injured areas of the foot of a patient, thereby allowing the patient to remain ambulatory.
  • the compressible bladder system 512 is activated as previously described to generate reduced pressure. This reduced pressure may be directed to the injuries or wounds of the patient to improve healing through reduced pressure treatment.
  • a method for providing a reduced pressure to a reduced pressure tissue treatment system used by a user includes compressing a compressible bladder with a foot of the user, and generating the reduced pressure within a chamber of the compressible bladder as the compressible bladder expands.
  • the compressible bladder may be similar to any of the compressible bladders or compressible bladder systems described herein.
  • the method may further include compressing a second compressible bladder with the foot of the user and generating a second reduced pressure within a second chamber of the second compressible bladder as the second compressible bladder expands.
  • the second reduced pressure may be substantially the same as the first reduced pressure, or alternatively may be a higher or lower pressure.
  • the first compressible bladder is positioned under a forefoot region of the foot and is compressed when the user places weight on the forefoot region.
  • the second compressible bladder is positioned under a heel region of the foot and is compressed when the user places weight on the heel region.
  • both of the compressible bladders are compressed and expanded during a single stride of the user while walking.
  • the compressible bladders described herein are positionable beneath a foot of a user, the compressible bladders may instead be compressed by applying a force from another part of the body or some other object.
  • a compressible bladder system having two compressible bladders is illustrated, a single compressible bladder may be used, or alternatively, multiple compressible bladders in excess of two may be used.
  • each of the compressible bladders is fluidly independent, and each compressible bladder includes one-way valves or devices associated with the inlet and outlet of the compressible bladder.
  • the pressure regulators described herein may serve to regulate or control the pressure supplied by the compressible bladder system.
  • the pressure regulator may further be used to provide a reduced pressure to a tissue site when a positive pressure is supplied to the pressure regulator. While the use of pressure regulators may be preferred in some embodiments, in other embodiments, a pressure regulator may be omitted.
  • the compressible bladder may be configured to be self-regulating based on the sizing, shape, and material used for the compressible bladder and the biasing member.
  • the compressible bladder continues to supply additional reduced pressure as long as the resiliency of the biasing member or the chamber wall of the compressible bladder is able to overcome the tendency of the compressible bladder to remain collapsed.
  • the biasing member or chamber wall is no longer able to expand following compression due to the amount of reduced pressure in the conduit leading to the tissue site, the compressible bladder will no longer generate additional reduced pressure.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Otolaryngology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Surgical Instruments (AREA)
  • External Artificial Organs (AREA)

Abstract

L’invention concerne un système de traitement de pression réduite incluant une chambre compressible positionnable sous un pied d’un utilisateur et mobile entre une position étendue et une position comprimée. La chambre compressible comprend une admission et un refoulement. Une soupape d’admission est en communication fluidique avec l’admission pour empêcher un fluide au sein de la chambre compressible de sortir de l’admission, et une soupape de refoulement en communication fluidique avec le refoulement pour empêcher un fluide d’entrer dans la chambre compressible à travers le refoulement. Un organe de sollicitation est disposé au sein de la chambre compressible pour solliciter la chambre compressible vers la position étendue, et un connecteur est positionnable au niveau d’un site de tissu et en communication fluidique avec l’admission de la chambre compressible.
PCT/US2009/037111 2008-03-13 2009-03-13 Système et procédé pour une charge de pression réduite WO2009114775A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP09719686.9A EP2262548B1 (fr) 2008-03-13 2009-03-13 Système pour une charge de pression réduite
BRPI0906141A BRPI0906141A2 (pt) 2008-03-13 2009-03-13 sistema de tratamento de pressão reduzida
CA2716486A CA2716486C (fr) 2008-03-13 2009-03-13 Systeme et procede pour une charge de pression reduite
AU2009223234A AU2009223234B2 (en) 2008-03-13 2009-03-13 System and method for reduced pressure charging
CN2009801074207A CN101959545B (zh) 2008-03-13 2009-03-13 用于减压装载的系统和方法
JP2010550891A JP5122658B2 (ja) 2008-03-13 2009-03-13 減圧をかけるためのシステムおよび方法
IL207780A IL207780A0 (en) 2008-03-13 2010-08-24 System and method for reduced pressure charging
ZA2010/07284A ZA201007284B (en) 2008-03-13 2010-10-12 System and method for reduced pressure charging

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US3639108P 2008-03-13 2008-03-13
US61/036,391 2008-03-13

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CA (1) CA2716486C (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2470938A (en) * 2009-06-09 2010-12-15 Polarseal Tapes & Conversions Expanding medical retainer for holding an item in contact with a surface under pressure

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0325126D0 (en) 2003-10-28 2003-12-03 Smith & Nephew Apparatus with heat
US7909805B2 (en) 2004-04-05 2011-03-22 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US10058642B2 (en) 2004-04-05 2018-08-28 Bluesky Medical Group Incorporated Reduced pressure treatment system
GB0409444D0 (en) * 2004-04-28 2004-06-02 Smith & Nephew Apparatus
US8529548B2 (en) 2004-04-27 2013-09-10 Smith & Nephew Plc Wound treatment apparatus and method
CA2881738A1 (fr) * 2006-10-17 2008-04-24 Richard Scott Weston Appareils destines a soigner des blessures par pression negative actives par un auxiliaire et procedes afferents
HUE041864T2 (hu) 2007-11-21 2019-06-28 Smith & Nephew Sebkötözõ
EP2214612B1 (fr) 2007-11-21 2019-05-01 Smith & Nephew PLC Pansement de plaie
JP5118213B2 (ja) 2008-03-05 2013-01-16 ケーシーアイ ライセンシング インコーポレイテッド 被覆材および組織部位に減圧をかけ、組織部位から液体を捕集および収容するための方法
CA2716486C (fr) * 2008-03-13 2017-06-27 Kci Licensing, Inc. Systeme et procede pour une charge de pression reduite
WO2009139893A1 (fr) 2008-05-15 2009-11-19 Ossur Hf Ambulateur périphérique
US8814842B2 (en) 2010-03-16 2014-08-26 Kci Licensing, Inc. Delivery-and-fluid-storage bridges for use with reduced-pressure systems
US20120203144A1 (en) * 2011-02-07 2012-08-09 Kci Licensing, Inc. Methods and systems for treating a hoof on an ungulate mammal
US9198803B1 (en) 2011-09-26 2015-12-01 David S. London Dressing device for offloading and treating an ulcer
US10940047B2 (en) 2011-12-16 2021-03-09 Kci Licensing, Inc. Sealing systems and methods employing a hybrid switchable drape
EP2802304B1 (fr) 2011-12-16 2015-12-09 KCI Licensing, Inc. Champs opératoires médicaux libérables
CN107260398B (zh) 2012-03-12 2021-03-16 史密夫及内修公开有限公司 用于减压伤口治疗的伤口敷料装置
US9144530B2 (en) 2012-05-17 2015-09-29 Nike, Inc. Compressive therapeutic device
GB201216928D0 (en) * 2012-09-21 2012-11-07 I2R Medical Ltd Portable medical device system
EP2919730B1 (fr) 2012-11-16 2016-06-01 KCI Licensing, Inc. Champ médical avec couches adhésives à motifs et son procédé de fabrication
US10939723B2 (en) 2013-09-18 2021-03-09 Ossur Hf Insole for an orthopedic device
US9668907B2 (en) 2013-09-25 2017-06-06 Ossur Iceland Ehf Orthopedic device
US9744065B2 (en) 2013-09-25 2017-08-29 Ossur Hf Orthopedic device
US9839548B2 (en) 2013-09-25 2017-12-12 Ossur Iceland Ehf Orthopedic device
EP3470030A1 (fr) 2013-10-28 2019-04-17 KCI Licensing, Inc. Ruban d'étanchéité hybride
EP3062751B1 (fr) 2013-10-30 2017-08-09 KCI Licensing, Inc. Système d'absorption et de dissipation d'un condensat
WO2015065615A1 (fr) 2013-10-30 2015-05-07 Kci Licensing, Inc. Conduit et système absorbants
US9956120B2 (en) 2013-10-30 2018-05-01 Kci Licensing, Inc. Dressing with sealing and retention interface
EP3821859A1 (fr) 2013-10-30 2021-05-19 3M Innovative Properties Co. Pansement avec des perforations de taille différente
US10058143B2 (en) 2013-12-12 2018-08-28 Ossur Hf Outsole for orthopedic device
US11026844B2 (en) 2014-03-03 2021-06-08 Kci Licensing, Inc. Low profile flexible pressure transmission conduit
USD742017S1 (en) 2014-03-27 2015-10-27 Ossur Hf Shell for an orthopedic device
EP3597159B1 (fr) 2014-06-05 2021-08-04 3M Innovative Properties Company Pansement avec des caractéristiques d'acquisition et de distribution de fluides
WO2016123049A1 (fr) * 2015-01-26 2016-08-04 Ossur Iceland Ehf Dispositif orthopédique de thérapie par pression négative
CN113367890B (zh) 2015-04-27 2023-02-21 史密夫及内修公开有限公司 减压装置
US11246975B2 (en) 2015-05-08 2022-02-15 Kci Licensing, Inc. Low acuity dressing with integral pump
WO2017040045A1 (fr) 2015-09-01 2017-03-09 Kci Licensing, Inc. Pansement présentant une force d'apposition accrue
EP3892310A1 (fr) 2015-09-17 2021-10-13 3M Innovative Properties Co. Couvercle adhésif hybride en silicone et acrylique destiné à être utilisé dans le traitement des plaies
US11324639B2 (en) * 2015-09-21 2022-05-10 Brigham And Women's Hospital, Inc. Negative pressure wound treatment system and method
EP3426206B1 (fr) 2016-03-07 2023-05-10 Smith & Nephew plc Appareils et procédés de traitement de plaies avec une source de pression négative intégrée dans un pansement
CA3022184A1 (fr) 2016-04-26 2017-11-02 Smith & Nephew Plc Pansements et procedes d'utilisation avec une source de pression negative integree munie d'un composant d'inhibition d'entree de liquide
EP3452130B1 (fr) 2016-05-03 2021-12-01 Smith & Nephew plc Optimisation de transfert de puissance vers des sources de pression négative dans des systèmes de thérapie à pression négative
WO2017191154A1 (fr) 2016-05-03 2017-11-09 Smith & Nephew Plc Activation et commande d'un dispositif de traitement des plaies par pression négative
AU2017259003B2 (en) 2016-05-03 2022-09-22 Smith & Nephew Plc Systems and methods for driving negative pressure sources in negative pressure therapy systems
CN109561994B (zh) 2016-08-25 2022-03-15 史密夫及内修公开有限公司 吸收性负压伤口疗法敷料
CN106174873A (zh) * 2016-08-29 2016-12-07 琪尔特有限公司 一种智能矫正鞋垫
JP7055795B2 (ja) 2016-09-30 2022-04-18 スミス アンド ネフュー ピーエルシー 一体化された電子機器を備えた陰圧創傷治療装置及び方法
AU2018229808B2 (en) 2017-03-08 2024-04-11 Smith & Nephew Plc Negative pressure wound therapy device control in presence of fault condition
CA3062507A1 (fr) 2017-05-09 2018-11-15 Smith & Nephew Plc Commandes redondantes pour systemes de traitement de plaies par pression negative
GB201718070D0 (en) 2017-11-01 2017-12-13 Smith & Nephew Negative pressure wound treatment apparatuses and methods with integrated electronics
CN111065424A (zh) 2017-09-13 2020-04-24 史密夫及内修公开有限公司 具有集成电子器件的负压伤口治疗设备及方法
GB201718072D0 (en) 2017-11-01 2017-12-13 Smith & Nephew Negative pressure wound treatment apparatuses and methods with integrated electronics
GB201718054D0 (en) 2017-11-01 2017-12-13 Smith & Nephew Sterilization of integrated negative pressure wound treatment apparatuses and sterilization methods
EP3703632B1 (fr) 2017-11-01 2024-04-03 Smith & Nephew plc Appareils et procédés de traitement de plaies par pression négative avec électronique intégrée
WO2019157466A1 (fr) 2018-02-12 2019-08-15 Healyx Labs, Inc. Systèmes, dispositifs et méthodes de traitement de plaie par pression négative
US10548778B2 (en) 2018-04-02 2020-02-04 Ic Surgical, Inc. Negative pressure pumps and related methods
USD898925S1 (en) 2018-09-13 2020-10-13 Smith & Nephew Plc Medical dressing
WO2020205449A1 (fr) 2019-03-29 2020-10-08 Kci Licensing, Inc. Traitement par pression négative avec stabilisation de zone
CN113660918A (zh) * 2019-03-29 2021-11-16 凯希特许有限公司 具有区域稳定性的负压治疗
US20220184295A1 (en) * 2020-12-11 2022-06-16 Hisham Alshaer Manually operated negative pressure wound treatment apparatus coupled with smart feedback system
KR102594468B1 (ko) * 2022-09-16 2023-10-25 가톨릭관동대학교산학협력단 음압 드레싱 시스템

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1848689U (de) * 1961-12-22 1962-03-22 Medizintechnik Leipzig Veb Saugpumpe zum absaugen von sekreten aus den atmungskanaelen.
US3809087A (en) * 1973-05-17 1974-05-07 R Lewis Closed wound suction apparatus having biased plate members
EP0803258A2 (fr) * 1996-04-27 1997-10-29 Heraeus Med GmbH Pompe d'aspiration
US20010029956A1 (en) * 1991-11-14 2001-10-18 Argenta Louis C. Wound treatment employing reduced pressure
US20020183652A1 (en) * 2001-06-04 2002-12-05 Kensey Kenneth R. Non-biohazard blood letting system
US20040010939A1 (en) * 2001-09-24 2004-01-22 Liu Chang Yuen Shoes having ventilation devices

Family Cites Families (141)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1355846A (en) 1920-02-06 1920-10-19 David A Rannells Medical appliance
US2547758A (en) 1949-01-05 1951-04-03 Wilmer B Keeling Instrument for treating the male urethra
US2632443A (en) 1949-04-18 1953-03-24 Eleanor P Lesher Surgical dressing
GB692578A (en) 1949-09-13 1953-06-10 Minnesota Mining & Mfg Improvements in or relating to drape sheets for surgical use
US2682873A (en) 1952-07-30 1954-07-06 Johnson & Johnson General purpose protective dressing
NL189176B (nl) 1956-07-13 1900-01-01 Hisamitsu Pharmaceutical Co Pleister op basis van een synthetische rubber.
US2969057A (en) 1957-11-04 1961-01-24 Brady Co W H Nematodic swab
US3066672A (en) 1960-09-27 1962-12-04 Jr William H Crosby Method and apparatus for serial sampling of intestinal juice
US3367332A (en) 1965-08-27 1968-02-06 Gen Electric Product and process for establishing a sterile area of skin
US3520300A (en) 1967-03-15 1970-07-14 Amp Inc Surgical sponge and suction device
US3568692A (en) * 1967-11-27 1971-03-09 Bowles Eng Corp Optical machining process
US3568675A (en) 1968-08-30 1971-03-09 Clyde B Harvey Fistula and penetrating wound dressing
US3682180A (en) 1970-06-08 1972-08-08 Coilform Co Inc Drain clip for surgical drain
BE789293Q (fr) 1970-12-07 1973-01-15 Parke Davis & Co Pansement medico-chirugical pour brulures et lesions analogues
US3826254A (en) 1973-02-26 1974-07-30 Verco Ind Needle or catheter retaining appliance
DE2527706A1 (de) 1975-06-21 1976-12-30 Hanfried Dr Med Weigand Einrichtung zum einleiten von kontrastmittel in einen kuenstlichen darmausgang
DE2640413C3 (de) 1976-09-08 1980-03-27 Richard Wolf Gmbh, 7134 Knittlingen Katheter-Überwachungsgerät
NL7710909A (nl) 1976-10-08 1978-04-11 Smith & Nephew Samengestelde hechtstrook.
GB1562244A (en) 1976-11-11 1980-03-05 Lock P M Wound dressing materials
US4080970A (en) 1976-11-17 1978-03-28 Miller Thomas J Post-operative combination dressing and internal drain tube with external shield and tube connector
US4139004A (en) 1977-02-17 1979-02-13 Gonzalez Jr Harry Bandage apparatus for treating burns
US4184510A (en) 1977-03-15 1980-01-22 Fibra-Sonics, Inc. Valued device for controlling vacuum in surgery
US4165748A (en) 1977-11-07 1979-08-28 Johnson Melissa C Catheter tube holder
US4245637A (en) 1978-07-10 1981-01-20 Nichols Robert L Shutoff valve sleeve
SE414994B (sv) 1978-11-28 1980-09-01 Landstingens Inkopscentral Venkateterforband
WO1980001139A1 (fr) 1978-12-06 1980-06-12 Svedman Paul Dispositif de traitement des tissus, par exemple de la peau
US4266545A (en) 1979-04-06 1981-05-12 Moss James P Portable suction device for collecting fluids from a closed wound
US4284079A (en) 1979-06-28 1981-08-18 Adair Edwin Lloyd Method for applying a male incontinence device
US4261363A (en) 1979-11-09 1981-04-14 C. R. Bard, Inc. Retention clips for body fluid drains
US4569348A (en) 1980-02-22 1986-02-11 Velcro Usa Inc. Catheter tube holder strap
ATE14835T1 (de) 1980-03-11 1985-08-15 Schmid Eduard Hauttransplantations-druckverband.
US4297995A (en) 1980-06-03 1981-11-03 Key Pharmaceuticals, Inc. Bandage containing attachment post
US4333468A (en) 1980-08-18 1982-06-08 Geist Robert W Mesentery tube holder apparatus
US4465485A (en) 1981-03-06 1984-08-14 Becton, Dickinson And Company Suction canister with unitary shut-off valve and filter features
US4392853A (en) 1981-03-16 1983-07-12 Rudolph Muto Sterile assembly for protecting and fastening an indwelling device
US4373519A (en) 1981-06-26 1983-02-15 Minnesota Mining And Manufacturing Company Composite wound dressing
US4392858A (en) 1981-07-16 1983-07-12 Sherwood Medical Company Wound drainage device
US4419097A (en) 1981-07-31 1983-12-06 Rexar Industries, Inc. Attachment for catheter tube
AU550575B2 (en) 1981-08-07 1986-03-27 Richard Christian Wright Wound drainage device
SE429197B (sv) 1981-10-14 1983-08-22 Frese Nielsen Anordning for behandling av sar
DE3146266A1 (de) 1981-11-21 1983-06-01 B. Braun Melsungen Ag, 3508 Melsungen Kombinierte vorrichtung fuer eine medizinische saugdrainage
US4551139A (en) 1982-02-08 1985-11-05 Marion Laboratories, Inc. Method and apparatus for burn wound treatment
US4475909A (en) 1982-05-06 1984-10-09 Eisenberg Melvin I Male urinary device and method for applying the device
DE3361779D1 (en) 1982-07-06 1986-02-20 Dow Corning Medical-surgical dressing and a process for the production thereof
NZ206837A (en) 1983-01-27 1986-08-08 Johnson & Johnson Prod Inc Thin film adhesive dressing:backing material in three sections
US4548202A (en) 1983-06-20 1985-10-22 Ethicon, Inc. Mesh tissue fasteners
US4540412A (en) 1983-07-14 1985-09-10 The Kendall Company Device for moist heat therapy
US4543100A (en) 1983-11-01 1985-09-24 Brodsky Stuart A Catheter and drain tube retainer
US4525374A (en) 1984-02-27 1985-06-25 Manresa, Inc. Treating hydrophobic filters to render them hydrophilic
GB2157958A (en) 1984-05-03 1985-11-06 Ernest Edward Austen Bedding Ball game net support
US4897081A (en) 1984-05-25 1990-01-30 Thermedics Inc. Percutaneous access device
US5215522A (en) 1984-07-23 1993-06-01 Ballard Medical Products Single use medical aspirating device and method
GB8419745D0 (en) 1984-08-02 1984-09-05 Smith & Nephew Ass Wound dressing
US4872450A (en) 1984-08-17 1989-10-10 Austad Eric D Wound dressing and method of forming same
US4655754A (en) 1984-11-09 1987-04-07 Stryker Corporation Vacuum wound drainage system and lipids baffle therefor
US4826494A (en) 1984-11-09 1989-05-02 Stryker Corporation Vacuum wound drainage system
US4605399A (en) 1984-12-04 1986-08-12 Complex, Inc. Transdermal infusion device
US5037397A (en) 1985-05-03 1991-08-06 Medical Distributors, Inc. Universal clamp
US4640688A (en) 1985-08-23 1987-02-03 Mentor Corporation Urine collection catheter
US4710165A (en) 1985-09-16 1987-12-01 Mcneil Charles B Wearable, variable rate suction/collection device
US4758220A (en) 1985-09-26 1988-07-19 Alcon Laboratories, Inc. Surgical cassette proximity sensing and latching apparatus
US4733659A (en) 1986-01-17 1988-03-29 Seton Company Foam bandage
EP0256060A1 (fr) 1986-01-31 1988-02-24 OSMOND, Roger L. W. Systeme de succion pour drainage de blessures et drainage gastro-intestinal
US4838883A (en) 1986-03-07 1989-06-13 Nissho Corporation Urine-collecting device
JPS62281965A (ja) 1986-05-29 1987-12-07 テルモ株式会社 カテ−テルおよびカテ−テル用固定部材
GB8621884D0 (en) 1986-09-11 1986-10-15 Bard Ltd Catheter applicator
GB2195255B (en) 1986-09-30 1991-05-01 Vacutec Uk Limited Apparatus for vacuum treatment of an epidermal surface
US4743232A (en) 1986-10-06 1988-05-10 The Clinipad Corporation Package assembly for plastic film bandage
DE3634569A1 (de) 1986-10-10 1988-04-21 Sachse Hans E Kondomkatheter, ein harnroehrenkatheter zur verhinderung von aufsteigenden infektionen
JPS63135179A (ja) 1986-11-26 1988-06-07 立花　俊郎 薬物の経皮投与具
GB8628564D0 (en) 1986-11-28 1987-01-07 Smiths Industries Plc Anti-foaming agent suction apparatus
GB8706116D0 (en) 1987-03-14 1987-04-15 Smith & Nephew Ass Adhesive dressings
US4787888A (en) 1987-06-01 1988-11-29 University Of Connecticut Disposable piezoelectric polymer bandage for percutaneous delivery of drugs and method for such percutaneous delivery (a)
US4863449A (en) 1987-07-06 1989-09-05 Hollister Incorporated Adhesive-lined elastic condom cathether
US5176663A (en) 1987-12-02 1993-01-05 Pal Svedman Dressing having pad with compressibility limiting elements
US4906240A (en) 1988-02-01 1990-03-06 Matrix Medica, Inc. Adhesive-faced porous absorbent sheet and method of making same
US4985019A (en) 1988-03-11 1991-01-15 Michelson Gary K X-ray marker
GB8812803D0 (en) 1988-05-28 1988-06-29 Smiths Industries Plc Medico-surgical containers
US4919654A (en) 1988-08-03 1990-04-24 Kalt Medical Corporation IV clamp with membrane
US5000741A (en) 1988-08-22 1991-03-19 Kalt Medical Corporation Transparent tracheostomy tube dressing
DE69017479T2 (de) 1989-01-16 1995-07-13 Roussel Uclaf Azabicycloheptenderivate und ihre Salze, Verfahren zu ihrer Herstellung, ihre Verwendung als Arzneimittel und diese enthaltende Zubereitungen.
GB8906100D0 (en) 1989-03-16 1989-04-26 Smith & Nephew Laminates
US4969880A (en) 1989-04-03 1990-11-13 Zamierowski David S Wound dressing and treatment method
US5100396A (en) 1989-04-03 1992-03-31 Zamierowski David S Fluidic connection system and method
US5527293A (en) 1989-04-03 1996-06-18 Kinetic Concepts, Inc. Fastening system and method
US5261893A (en) 1989-04-03 1993-11-16 Zamierowski David S Fastening system and method
US5358494A (en) 1989-07-11 1994-10-25 Svedman Paul Irrigation dressing
JP2719671B2 (ja) 1989-07-11 1998-02-25 日本ゼオン株式会社 創傷被覆材
US5232453A (en) 1989-07-14 1993-08-03 E. R. Squibb & Sons, Inc. Catheter holder
GB2235877A (en) 1989-09-18 1991-03-20 Antonio Talluri Closed wound suction apparatus
US5134994A (en) 1990-02-12 1992-08-04 Say Sam L Field aspirator in a soft pack with externally mounted container
US5092858A (en) 1990-03-20 1992-03-03 Becton, Dickinson And Company Liquid gelling agent distributor device
JP2941918B2 (ja) 1990-09-19 1999-08-30 テルモ株式会社 秤量装置
US5149331A (en) 1991-05-03 1992-09-22 Ariel Ferdman Method and device for wound closure
US5278100A (en) 1991-11-08 1994-01-11 Micron Technology, Inc. Chemical vapor deposition technique for depositing titanium silicide on semiconductor wafers
US5645081A (en) 1991-11-14 1997-07-08 Wake Forest University Method of treating tissue damage and apparatus for same
US5636643A (en) 1991-11-14 1997-06-10 Wake Forest University Wound treatment employing reduced pressure
US5279550A (en) 1991-12-19 1994-01-18 Gish Biomedical, Inc. Orthopedic autotransfusion system
US5167613A (en) 1992-03-23 1992-12-01 The Kendall Company Composite vented wound dressing
FR2690617B1 (fr) 1992-04-29 1994-06-24 Cbh Textile Pansement adhesif transparent.
CN2120585U (zh) 1992-04-29 1992-11-04 彭新鸾 脚踏式胃肠减压器
US5617650A (en) * 1992-10-23 1997-04-08 Grim; Tracy E. Vacuum formed conformable shoe
DE4306478A1 (de) 1993-03-02 1994-09-08 Wolfgang Dr Wagner Drainagevorrichtung, insbesondere Pleuradrainagevorrichtung, und Drainageverfahren
US5342376A (en) 1993-05-03 1994-08-30 Dermagraphics, Inc. Inserting device for a barbed tissue connector
US6241747B1 (en) 1993-05-03 2001-06-05 Quill Medical, Inc. Barbed Bodily tissue connector
US5344415A (en) 1993-06-15 1994-09-06 Deroyal Industries, Inc. Sterile system for dressing vascular access site
US5348530A (en) * 1993-07-29 1994-09-20 Royce Medical Company Pneumatic ankle brace with bladder and pump arrangement
US5437651A (en) 1993-09-01 1995-08-01 Research Medical, Inc. Medical suction apparatus
US5549584A (en) 1994-02-14 1996-08-27 The Kendall Company Apparatus for removing fluid from a wound
US5556375A (en) 1994-06-16 1996-09-17 Hercules Incorporated Wound dressing having a fenestrated base layer
US5607388A (en) 1994-06-16 1997-03-04 Hercules Incorporated Multi-purpose wound dressing
US5664270A (en) 1994-07-19 1997-09-09 Kinetic Concepts, Inc. Patient interface system
ES2186085T3 (es) 1994-08-22 2003-05-01 Kinetic Concepts Inc Recipiente de drenaje de heridas.
DE29504378U1 (de) 1995-03-15 1995-09-14 Mtg Medizinisch Tech Geraeteba Elektronisch geregelte Niedervakuumpumpe für die Thorax- und Wunddrainage
DE19517699C2 (de) * 1995-05-13 1999-11-04 Wilhelm Fleischmann Vorrichtung zur Vakuumversiegelung einer Wunde
GB9523253D0 (en) 1995-11-14 1996-01-17 Mediscus Prod Ltd Portable wound treatment apparatus
US6135116A (en) 1997-07-28 2000-10-24 Kci Licensing, Inc. Therapeutic method for treating ulcers
JPH1142101A (ja) * 1997-07-28 1999-02-16 Fujio Fujimoto 換気機能付き靴
GB9719520D0 (en) 1997-09-12 1997-11-19 Kci Medical Ltd Surgical drape and suction heads for wound treatment
AU755496B2 (en) 1997-09-12 2002-12-12 Kci Licensing, Inc. Surgical drape and suction head for wound treatment
US6071267A (en) 1998-02-06 2000-06-06 Kinetic Concepts, Inc. Medical patient fluid management interface system and method
US6488643B1 (en) 1998-10-08 2002-12-03 Kci Licensing, Inc. Wound healing foot wrap
GB9822341D0 (en) 1998-10-13 1998-12-09 Kci Medical Ltd Negative pressure therapy using wall suction
US6287316B1 (en) 1999-03-26 2001-09-11 Ethicon, Inc. Knitted surgical mesh
US6856821B2 (en) 2000-05-26 2005-02-15 Kci Licensing, Inc. System for combined transcutaneous blood gas monitoring and vacuum assisted wound closure
US7799004B2 (en) 2001-03-05 2010-09-21 Kci Licensing, Inc. Negative pressure wound treatment apparatus and infection identification system and method
US6006447A (en) 1999-04-22 1999-12-28 Neal; James R. Shoe insole with air circulation system
US6991643B2 (en) 2000-12-20 2006-01-31 Usgi Medical Inc. Multi-barbed device for retaining tissue in apposition and methods of use
WO2001062328A1 (fr) 2000-02-24 2001-08-30 Venetec International, Inc. Systeme polyvalent servant a fixer un catheter
US6540705B2 (en) 2001-02-22 2003-04-01 Core Products International, Inc. Ankle brace providing upper and lower ankle adjustment
US7004915B2 (en) * 2001-08-24 2006-02-28 Kci Licensing, Inc. Negative pressure assisted tissue treatment system
US6755798B2 (en) * 2002-02-13 2004-06-29 Aircast, Inc. Pneumatic achilles sleeve
MXPA05004635A (es) * 2002-11-01 2005-10-26 Bock Healthcare Lp Zapato suspendido en vacio.
US7051456B2 (en) 2003-07-29 2006-05-30 Nike, Inc. Article of footwear incorporating an inflatable chamber
US8100887B2 (en) * 2004-03-09 2012-01-24 Bluesky Medical Group Incorporated Enclosure-based reduced pressure treatment system
JP2006116162A (ja) * 2004-10-25 2006-05-11 Hirosaki Univ 陰圧閉鎖装置
WO2007030598A2 (fr) * 2005-09-07 2007-03-15 Tyco Healthcare Group Lp Pansement de plaies avec un reservoir a vide
US7896823B2 (en) * 2006-01-17 2011-03-01 Theranova, Llc Method and apparatus for treating wound using negative pressure therapy
US8267908B2 (en) * 2007-02-09 2012-09-18 Kci Licensing, Inc. Delivery tube, system, and method for storing liquid from a tissue site
US7790946B2 (en) * 2007-07-06 2010-09-07 Tyco Healthcare Group Lp Subatmospheric pressure wound therapy dressing
CA2716486C (fr) * 2008-03-13 2017-06-27 Kci Licensing, Inc. Systeme et procede pour une charge de pression reduite

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1848689U (de) * 1961-12-22 1962-03-22 Medizintechnik Leipzig Veb Saugpumpe zum absaugen von sekreten aus den atmungskanaelen.
US3809087A (en) * 1973-05-17 1974-05-07 R Lewis Closed wound suction apparatus having biased plate members
US20010029956A1 (en) * 1991-11-14 2001-10-18 Argenta Louis C. Wound treatment employing reduced pressure
EP0803258A2 (fr) * 1996-04-27 1997-10-29 Heraeus Med GmbH Pompe d'aspiration
US20020183652A1 (en) * 2001-06-04 2002-12-05 Kensey Kenneth R. Non-biohazard blood letting system
US20040010939A1 (en) * 2001-09-24 2004-01-22 Liu Chang Yuen Shoes having ventilation devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2470938A (en) * 2009-06-09 2010-12-15 Polarseal Tapes & Conversions Expanding medical retainer for holding an item in contact with a surface under pressure
GB2470938B (en) * 2009-06-09 2013-07-03 Polarseal Tapes & Conversions Actuating apparatus

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JP2011514832A (ja) 2011-05-12
JP5878855B2 (ja) 2016-03-08
US9827403B2 (en) 2017-11-28
US20180043142A1 (en) 2018-02-15
US20130116661A1 (en) 2013-05-09
CA2716486C (fr) 2017-06-27
AU2009223234B2 (en) 2014-04-24
EP2262548B1 (fr) 2018-09-26
BRPI0906141A2 (pt) 2016-06-21
JP5122658B2 (ja) 2013-01-16
IL207780A0 (en) 2010-12-30
CN101959545B (zh) 2013-06-19
CA2716486A1 (fr) 2009-09-17
US10842977B2 (en) 2020-11-24
RU2010138980A (ru) 2012-04-20
ZA201007284B (en) 2011-06-29
EP2468323B1 (fr) 2014-10-15
TW200946152A (en) 2009-11-16
EP2468322A1 (fr) 2012-06-27
EP2468322B1 (fr) 2015-10-07
US8366644B2 (en) 2013-02-05
EP2262548A1 (fr) 2010-12-22
KR20100129764A (ko) 2010-12-09
CN101959545A (zh) 2011-01-26
EP2468323A1 (fr) 2012-06-27
US20090234260A1 (en) 2009-09-17
AU2009223234A1 (en) 2009-09-17

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